AlterDatabaseOperation.OldDatabase 属性

参考

定义

命名空间:: Microsoft.EntityFrameworkCore.Migrations.Operations

程序集:: Microsoft.EntityFrameworkCore.Relational.dll

包:: Microsoft.EntityFrameworkCore.Relational v1.1.6

包:: Microsoft.EntityFrameworkCore.Relational v2.0.3

包:: Microsoft.EntityFrameworkCore.Relational v2.1.11

包:: Microsoft.EntityFrameworkCore.Relational v2.2.6

包:: Microsoft.EntityFrameworkCore.Relational v3.0.0

包:: Microsoft.EntityFrameworkCore.Relational v3.1.0

包:: Microsoft.EntityFrameworkCore.Relational v5.0.0

包:: Microsoft.EntityFrameworkCore.Relational v6.0.0

包:: Microsoft.EntityFrameworkCore.Relational v7.0.0

包:: Microsoft.EntityFrameworkCore.Relational v8.0.0

重要

一些信息与预发行产品相关，相应产品在发行之前可能会进行重大修改。对于此处提供的信息，Microsoft 不作任何明示或暗示的担保。

一个操作，表示数据库在更改前的原样。

public virtual Microsoft.EntityFrameworkCore.Infrastructure.Annotatable OldDatabase { get; }

public virtual Microsoft.EntityFrameworkCore.Migrations.Operations.DatabaseOperation OldDatabase { get; }

member this.OldDatabase : Microsoft.EntityFrameworkCore.Infrastructure.Annotatable

member this.OldDatabase : Microsoft.EntityFrameworkCore.Migrations.Operations.DatabaseOperation

Public Overridable ReadOnly Property OldDatabase As Annotatable

Public Overridable ReadOnly Property OldDatabase As DatabaseOperation

属性值

DatabaseOperation

适用于